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Finding the Fourth Proportional to 265,342.77, 398,017.19 and 113,519.21

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Solution

The fourth proportional to 265,342.77, 398,017.19 and 113,519.21 is: 170,280.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    265,342.77 : 398,017.19 = 113,519.21 : x
  2. Step 2: Convert to fraction form
    265,342.77/398,017.19 = 113,519.21/x
  3. Step 3: Cross multiply
    265,342.77x = 398,017.19 × 113,519.21
  4. Step 4: Simplify right side
    265,342.77x = 45,182,595,268.93
  5. Step 5: Solve for x
    x = 45,182,595,268.93/265,342.77
  6. Step 6: Final answer
    x = 170,280.11

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.